Filing machine



April 26, 1938.

A. J. FHCKNER FILlNG MACHNE Filed OC. 19, 1936 2 SheelbS-Shee l I D Q .Q Ol u; l dg N2 x-.v h

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April 26, 1938. A. JfBRlcK'NER 2,114,994

FILING MACHINE Filed Qot. 19, 1936 2 Sheets-Sheet 2 J7 irhy BIO '22 "21 qv omai);

Patented Apr. 26, 1938 UNITE-D STATES PATENT OFFICE FILING MACHINE Michigan Application October` 19, 1936', Serial No. 106,400

4 Claims.

lIhis invention relates to a filing machine which is particularly useful for the purpose of filing and lapping die punches though of course it may be used for filing other work. However, in the process of making punches for dies', after the same have been roughed out to approximate size it has been considered heretofore necessary to do the final finishing and honing operations upon the punch by hand, this adding to the cost of the punches'and in fact being a large item in the cost. In accordance with my invention a very practical and useful filing machine is provided, particularly adapted for the purpose stated and' in which the le is held at its upper end above the work to be led, the lower portion of the iile is free of any connection and mayl operate upon a die punch directly downward to a shoulder at the lower end of the die punch,V

which is substantially if not entirely a universal. 2U element or part of die punches. The machine is further equipped with means for angular adjustment whereby the le or the work may be adjusted at an angleY to the perpendicular so that the die punch operated upon by the le may be filed at an angle either from its. upper end downwardly and outwardly or from. itsV upper end downwardly and inwardly. There. is also provided a means for adjusting the file holding part of the machine in a vertical direction so that files of different lengths may be used in the machine and also those of different types and characters; and the stroke of the file may be very readily quickly and accurately adjusted to v any desired length.

An understanding ofthe invention for the attainment of the advantages and objects stated, as well as many others not enumerated may be had from the following description, taken in connection with the accompanying drawings, in which,

Fig. 1 is a perspective view of a fili-ng machine embodying my invention. Y

Fig. 2 is an enlarged front elevation of the upper part of the machine.

Fig. 3 is a side elevation, partly inY section, on a plane at right angles to the elevation. shown in Fig. 2.

Fig. 4 is a fragmentary plan view with. some 5 parts shown in horizontal section for better disclosure, and

Fig. 5 is a fragmentary' view illustrating a feature of the construction for the angularly head.

Like reference characters refer to like parts in thediierent figures of the drawings.

The machine includes a supporting pedestal l having a head 2 at its upper end above which is a generally horizontal table 3 which has downwardly extending ears 4 between two oi its opposite edges, a pivot rod 5 passing through the ears and through suitable lugs on the head2 of the pedestal whereby the table may` have a limited angular adjustment about the axis cf the rod 5. An ear or lug 6 extends downwardly near one of the sides of the table 3 and is vertically slotted, through which passes a set screw 'I threading into the head'V 2 of the pedestal to secure the table 3 in any position to which it may be adjusted. It is evident that adjdstmentv may be made within the limits prescribed for the length of the slot in the ear or lug 6.

At the rear side of the head 2 an arm 8, inte-- grally formed therewith, extends rearwardly' and upwardly and terminates in a; split sleeve 9 having upper and lower ears 9a; at its rear side above and below the parting in the sleeve and which may be drawn together by a screw l0 toY clamp the sleeve upon a cylindrical boss H which extends laterally at the lower end of a substanf tially vertical arm I2 of a support for the ling head. At the upper end of the arm I2 'a hori-y zontal arm i3 extends forwardly so as to lie over the table 3, terminating in a head I4.

The head I4 at its front side is machined to provide a recess for the reception of two spaced apart vertical gibs I5 and i5 which areV fastened to the head I4' at its front'sid'e by means of suitable machine screws. The gib I6 at one side is adjustable inwardly slight distances by means of adjusting screws Il threading through the adjacent side of the head I4. this for the purpose of compensating for and taking up wear which occurs when the vertically moving slide- I8 mounted between theI gibs I5 and i6 in. the course of time wears at its vertical edges and also wears the gibs thereby making it desirable that the wear be thus compensated. The slide i8 hasl a plate I9 at its front side permanently secured so asV tov be in effect integral therewith. The slide unit at the lower end has forwardly extending jaws 20 which may be clamped by means of, a clamping screw '2l against' the shank of al le 22, the le extending downwardly toward the table as shown. i

An electric motor 23 is supported onV asuitable bracket or shelf at the; rear side ofthe pedestal I and has adriveA pulleyllllon its shaft;

which, through an endless belt 25, drives a driven pulley 26 secured to a shaft 21 mounted for rotation in suitable anti-friction bearings in and extending through the cylindrical member I I. At its opposite end the shaft 21 is equipped with a cylindrical head 28 which has a T-slot 29 in its outer face passing diametrically across the head. f j

On a suitable pivot 30, at the upper end of the arm I2, a bell crank lever is mounted for rocking movements, having a downwardly exf tending arm 3| and a forwardly extending arm.

32 as best shown in Fig. 3. The arm 3| at its lower end is equipped with an open framel 33. A bolt 34, having a head 35 located in the T-slot 29 (Fig. 2), passes through a block 36 which is located in the frame 33 and slidable between its vertical sides. A clamping' nut 31, to clamp against the frame 33, is threaded onto the outer end of the bolt 34. By means of this construction there is an adjustment of the bell crank lever relative to the rotative axis of the head 24 whereby the arc of movement of the bell crank lever may be varied, being increased the farther the bolt 34 is moved away from the axis of rotation of the shaft 21 and the head 28 thereon.

The forwardly extending arm 32 of the bell crank lever is forked atits front end and carries a pin 39 which extends through a horizontal slot in the rear side of a block or member 38 to which, at its front side, the slide I8 with the attached plate I9 is adjustably secured. 'Ihe slide I8 and plate I9 are vertically slotted as at 40. A, screw 4I passes through a clamping block 42 and threads into the member 38, the clamping member 42 being of less length than the slot 40,

' so that by loosening the screw 4I theslide with f the attached le may be verticaly adjusted to any f desired position. It is evident that with the motor 23 operating the file is given vertical reciprocatory movements, the length of the ystroke being governed by the position in which the frame 33 is held relative tothe head 28, the position of the file relative to the table 3 being governed by the adjustable connection ofthe slide I8 to the member 38, and the angular posi- Vtion of the le relative to the perpendicular being governed by the adjustment of the member I2 and the cylindrical boss II at its lower end in the clamping sleeve 9. The position of the work relative to the vertical, the work being carried on the table 3, is governed by the angular'adjustment which the table may have relative to a horizontal plane, Vwhichadjustment is governed by the slotted lug 6 and the clamping screw 1 associated therewith. 4

In Fig. 2 a die punch 43 is shown located upon the table 3 upon a supporting block 44 and with the punch at its lower end having a horizontal shoulder 45 between the major portion or body of the punch and the lower end portion thereof. In case the punch is not thus enlarged at its lower end so as to make the shoulder 45, there will be the same condition present in effect in that there will be a horizontal shoulder between the lower end of the punch and the block 44 on which it rests. The file, being held at its upper end and depending below the head supportingit, may be used to file the punch 43 to the shoulder at 45. By the adjustment described for the table 3 and they adjustment of the supporting bracket consisting of the parts I2 and I3 about the horizontal axis of the shaft 21, substantially any desired angles that may be necessary fome file and of the Work in both directions from a true "punches to substantially accurate finished sizes.

The invention is defined in the appended claims and is to be considered comprehensive of all forms of structure coming within their scope.

I claim:

1. In a machine of the class described, a supporting pedestal, a split sleeve fixed thereon, a support having a hollow cylindrical boss rotatably mounted in said split sleeve, means for clamping the said boss in its chosen position, a plate slidably mounted upon said support, a stub shaft extending through the hollow portion of the boss, means for driving the stub shaft, a head Y xed onto the end of the shaft, an eccentric pin on the head, an L-shaped crank medially pivoted on the said support, one end of the crank being slotted to receive the said eccentric pin to cause oscillation of the said L-shaped crank, the other arm of the L-shaped crank having an 'extension thereon and means cooperatively associated with the extension and the said plate to cause reciprocation of the said plate.

2. A filing machine of the class described hav-` ing a pedestal, a horizontal table, means for mountingl the table for tiltingmo-vement relatively to the pedestal, a horizontal supporting sleeve, means for mounting the` supporting sleeve at right angles to the axis of the means about which the table is tiltable, an L-shaped support including a boss, near one end of said support, oscillatable in said sleeve and having its otherend extending above the table, a sliding mechanismn slidably mounted upon said arm for movement toward and away from the said table, means for adjustablyV clamping the said boss in said supporting sleeve to adjust the angularity of the sliding mechanism relatively to the table, a shaft, means for supporting 'the shaft for rotation, means for rotating Vsaid shaft, aheady located on said shaft, a crank pin in said head, a bell crank lever pivoted on said support at its medial portion and in alinement therewith and having one arm engageable'with the said crank pin whereby the bell crank is oscillated and means located between the other arm of the bell lcrank and the sliding means whereby the sliding means is reciprocated.

3. In a mechanism of the class described, a pedestal, a head mounted thereon, means extending laterally from the pedestal, a supporting bracket having a boss pivotally mounted in said lateral extending means, means for locking the bracket against movement, Va shaft, means for mounting the Shaft upon the bracket and providing for its rotative movement and with its axis coincident with the axis about which the bracket may be moved,- a motor, means for mounting the motor upon the pedestal, means for interconnecting the motor and the shaft whereby the shaft is driven, sliding means mounted upon the bracket, clamping means attached to the-said sliding means, means mounted rupon the Ybracket and interposed between the sliding means and the rotatable rshaft for reciprocating the said sliding means and its clamping means, said, in- 7,5"

terposed means comprising a bell crank lever pivoted upon the said supporting bracket, one end of the lever having a pin extending therefrom, the slide having a slotted member, which slot receives the said pin, the other end of the bell crank lever likewise being slotted and eccentric means movable with the said shaft and receivable in said slot to actuate said bell crank lever.

4. In a machine of the class described, a supporting pedestal, mounting means xed thereon, an L-shaped support having a hollow cylindrical boss rotatably mounted in said mounting means,

additional means for clamping the said boss in its chosen position, a plate slidably mounted upon said support, a stub shaft extending through the hollow portion of the boss, means for driving the stub shaft, a head fixed onto the head of the shaft, an eccentric pin on the head and an L-shaped crank medially pivoted on said support, one end of the crank being slotted to receive said pin to cause oscillation of said l.,shaped extension thereon. l

ARTHUR J. BRICKNER. 

